Earth Day

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Across
  1. 1. waste that is good for the earth
  2. 3. a layer of oil on the surface of water
  3. 9. preservation of natural resources
  4. 11. the natural home of an animal or plant
Down
  1. 2. contamination that affects health and quality of life
  2. 4. the normal weather conditions in a region
  3. 5. conditions that affect life in an area
  4. 6. to use something more than once
  5. 7. increase in the Earth's surface temperature
  6. 8. something that doesn't exist anymore
  7. 10. a mixture of smoke and fog